If the circumference of a circle is , what is the radius?
The area of Circle B is four times that of Circle A. The area of Circle C is four times that of Circle B. Which is the greater quantity?
(a) Twice the radius of Circle B
(b) The sum of the radius of Circle A and the radius of Circle C
(a) is greater.
(a) and (b) are equal.
(b) is greater.
It cannot be determined from the information given.
, what is the radius?